THE SECRET OF THE GOLDEN FLOWER
Once you turn the light around,
everything in the world is turned around.
The light rays are concentrated upward into the eyes;
this is the great key of the human body.
You should reflect on this.
If you do not sit quietly each day,
this light flows and whirls,
stopping who knows where.
If you can sit quietly for a while,
all time-ten thousand ages,
a thousand lifetimes---is penetrated from this.
All phenomena revert to stillness.
Truly inconceivable is this sublime truth.

—from The Secret of the Golden Flower: The Classic Chinese Book of Life, translated by Thomas Cleary, HarperSanFrancisco, 1991, p.19